Valve-seat-removing mechanism



July 1, 1924. J EAQQfiE? H. FOLEY VALVE I SEAT REMOVING MECHANISM Filed Oct. 4.. l92l Y. Efgjg cquaulmz;

1% iii 12 I/VENTO I 'TTORNEV Patented July 1, 1924.

STATES PATENT OFFIQE.

HUGH FOLEY, or soUR nAKE, TEXAS.

VALVE-SEAT-REMOVING MECHANISM.

resident of Sour Lake, county of'Hardin,

and State of Texas, have invented certain new and useful Improvements in Valve- Seat-Removing Mechanism, of which the following is a specification, reference being had to the accompanying drawing, forming a part thereof. I

This inventioninvention relates to valve pullers and more particularly to such pullers adapted for vuse with pumps used in pumping heavy oils and the like, or in any machine or engine having valves and employin' heavy, sticky oils.

. itherto .in the operation of such pumps or engines it has been found necessary to remove the valve operating parts for regrinding and other repairs, and considerable difficulty has been found in such removal dueto the tendency of the parts to stick.

Broadly stated, it is the object of the present invention to provide improved means for removing such valve parts readily, quickly and conveniently.

In accordance with this object an improved form of removing tool is provided which is capable of being readily inserted into the engine for cooperating with the valve parts and by means of which a uniform pressure can be applied to such parts for the removal thereof.

Referring to the drawing:

Figure 1 shows avertical sectional elevation of the valve lifting means.

Figure 2 shows a view of the lifter in place within an engine with parts removed.

Figure 3 shows a section taken on the line 33 of Figure 2, and v Figure a shows a section taken on the line H of Figure 2.

Like reference characters denote like parts in the several figures of the drawing.

A preferred embodiment of my invention comprises a plurality of separable parts adapted to cooperate together, a rod 10, a nut 11, and a pair of'hinge members 12. The rod 10 is threaded at its upper portion for the reception of the nut 11 and is tapered at its lower portion so that its diameter gradually increases as the lower portion is approached. The lower end of the rod 10 is provided with an annular shoulder 13 for a purpose which will be subsequently set forth.

Application filed October 4, 1921. Serial No. 505,439.

The hinge members 12 are each in the formof a half cylinder and are adapted to surround the shank of the rod 10, Said members are provided with hinges whereby they may be pivotally secured together, in positions diametrically opposite as clearly shown in Figure 3., Each hinge member is provided with a handle 14 on its upper face. At the lower or free end of each hinge member 12, is provided a shoulder 15 corresponding in configuration to its respective hinge member 12. V

In assembling the device for use in removing the valve seat, such as the valve seat 16, the rod 10 is inserted through the orifice 1? of the seat, the hinge members 1212 being hinged together to form a sleeve slidable upon the upper portion of the rod 10, and this sleeve is inserted through the orifice 1? or slot throughwhich the rod lO-may be inserted, and the nut 11 is screwed upon the free end portion of the rod 10. The bar 18 acts as a supporting means against which force may be applied.

The rod 10 is held in such aposition that the portion thereof of restricted diameter is opposite the valve seat 16. The arrangement is such that the hinge members 12 will slide through the orifice 17 of the valve seat 16, and by means of the handles 14 the shoulders 15 may be caused to engage the lower surface of the valve seat 16, and the rod 10 is now drawn upwardly until its shoulder 13 clamps the shoulder 15 securely against the seat. Additional force may be now applied by turning the nut 11 against a face of the bar 18 and thus the valve seat 16 is gradually forced upwardly until entirely displaced from the remaining portion of the valve. It will be seen that the pressure is distributed around the periphery of the seat 16, so that the force is uniform at all points, thus insuring the removal of the seat with out amming.

The device may be now disassembled by first removing the nut 11, forcing the rod 10 downwardly until the portion thereof of restricted diameter is again opposite the valve seat 16, and then displacing the hinge members 12,-whereupon the entire valve removing mechanism ma be separated from the valve seat 16 and tie valve seat ground or otherwise repaired.

The valve seat may subsequently be reof the valve seat 16. A suitable bar or other supporting means 18 is providedwith 'a hole placed in any suitable manner, and the pump or engine operated as before.

Apparatus of preferred form and construction has been illustrated and described for the purpose of showing a way in which this invention may be practiced, but the inventive thought upon which this application is based is broader than this illustrative embodiment. It is therefore understood that the scope of the invention is not to be limited by the present disclosure, reference being had to the appended claims forthat}: p p I What I claim is:v 1. In'apparatus for removing valve seats tapered rod adapted to be inserted through the orifice of a valve seat, saidlrod having? an annular shoulder on its end portion of enlarged diameter, means slidable upon said rodformed to pass through the orifice of I the valve seat when in position on thenporf, tion of the rod of restricted diameter and to engage said valve seat when in position on the portion of the rod of relatively greater diameter, and means. for applying force to the rod, whereby said annular shoulder. will engage said means to remove the valveseat. 2. In apparatus for removing valveseats, a tapered rod adapted to be inserted through the orifice of a valve seat, said rod having an annular shoulderon its end portion of to the rod, wherebythe annular shoulder 0:1: the rod will engagesaid slidable means to r mov thev e s at,

3.' A,valv e seat, remover comprising, a tapered rod adapted to beinserted through the orificeof a valve seat and having an annular shoulder at its larger end, a plurality of radially movable members slidably mounted on the rod, each having an arcuatej shoulder for engaging the underside of the valveseat, and means for applying pressure to the rodin a direction to force the arcuate.

shoulders of the movable members intofengagement. with the underside of the valve 5 seat, and the annular shoulder of the rod:

into engagement with said 7 arcuate shoulderswhereby the pressure applied to the rod is imparted to the valve seatcausing its re-H moval.

In wltness whereof l have hereunto :set

imyhand thi fi y 5 1 1 6 1921 i I HUGH FOLEY- 

